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Paper-based microfluidic systems

  • US 8,921,118 B2
  • Filed: 03/27/2009
  • Issued: 12/30/2014
  • Est. Priority Date: 03/27/2008
  • Status: Active Grant
First Claim
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1. An assay device comprising a porous, hydrophilic substrate having first and second faces, a fluid-impermeable barrier permeating the thickness of the substrate and defining a boundary of an assay region and a boundary of a channel region fluidically connected to the assay region, an electrically conductive material disposed on one of the first and second faces of the substrate and spanning the channel region in proximity to said assay region, a detection reagent disposed in the assay region, and an insulating material disposed between the conductive material and the substrate.

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